Patents by Inventor Barbara Ritter

Barbara Ritter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Applicator swab and method of making the same
    Patent number: 4306555
    Abstract: A swab is formed of an elongated support having knit terry pile mounted thereon to form a head. The head is fixed to the support by cementing, staples, binding and/or folding of the support to form a U-shape. The head may also be fastened to the support by quilting. Another method of fastening the head on the support is to fasten a corner of a quadrilateral of knit terry pile to the support at an end of the support, folding the pile to cover the end, and wrapping the thusly folded pile around the support.
    Type: Grant
    Filed: April 15, 1980
    Date of Patent: December 22, 1981
    Inventor: Barbara Ritter
  • Applicator swab and method of making the same
    Patent number: 4259955
    Abstract: A swab is formed of an elongated support having knit terry pile mounted thereon to form a head. The head is fixed to the support by cementing, staples, binding and/or folding of the support to form a U-shape. The head may also be fastened to the support by quilting. Another method of fastening the head on the support is to fasten a corner of a quadrilateral of knit terry pile to the support at an end of the support, folding the pile to cover the end, and wrapping the thusly folded pile around the support.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: April 7, 1981
    Inventor: Barbara Ritter